Lexus es300 2002
Coolant comes out of the bottel Could any one tell me what is the Master? Thanks

 

Looks like the reddish color is inside the reservoir, which is normal if the hose inside the reservoir detached or leaks. If coolant is coming out of the that nipple on the cap, maybe, the reservoir is filled above the fill line. Worst case scenario, coolant is bubbling out due to stuck thermostat or bad head gasket, but you would notice high coolant temp on the gauge.

 

Hello dear
Thanks for your interest and replay
I want to explain more that the color is out not inside, and it is coolant itself on the reservoir
Some tell me that the redator cap is the reason. I change it with New one but no avail.
And some told me the you have to change the The entire coolant water inlet.

 

Hello,

What cap did you use as a replacement? I would strongly advise only using OEM cap here (P/N: 16401-62090), since it also acts as a Pressure Regulator for the system, opening a bypass channel to the Reservoir when there is an excess of pressure, which may be your problem.

Other thing is that may be the cause, if the Radiator Cap won't help, is the Head Gasket. There are Test Fluids designed to check them on sale, though I am not sure about your are, you will have to look around, they are pretty easy to use, below is the video.


Hope this helps and best of luck!

 

Is coolant coming out of the reservoir cap or the overflow opening on the reservoir cap?
Where is the coolant level inside the reservoir?